The living mechanical tissue providing tensile strength is

Options

A. sclerenchyma
B. parenchyma
C. collenchyma
D. sclereid

Answer

**Step-by-Step Solution:**

1. **Understanding the Question**: The question asks for the living mechanical tissue that provides tensile strength in plants.

2. **Identifying Mechanical Tissues**: In plants, mechanical tissues are primarily responsible for providing strength and support. The main types of mechanical tissues include sclerenchyma, collenchyma, and parenchyma.

3. **Evaluating Sclerenchyma**: Sclerenchyma is known for providing mechanical strength; however, it is composed of dead cells at maturity. Therefore, it cannot be the answer since the question specifies a living tissue.

4. **Evaluating Sclerids**: Sclerids are a type of sclerenchyma. Like sclerenchyma, they are also made up of dead cells and thus can be eliminated as well.

5. **Evaluating Parenchyma**: Parenchyma cells are living cells that perform various functions such as photosynthesis, storage, and secretion. However, they do not provide significant mechanical strength, so they can also be ruled out.

6. **Identifying Collenchyma**: Collenchyma is a living mechanical tissue that provides tensile strength to the plant. It consists of living cells and is known for its ability to support young and growing parts of the plant while allowing for flexibility.

7. **Conclusion**: Based on the evaluation of the options, collenchyma is the correct answer as it is the living mechanical tissue that provides tensile strength.

**Final Answer**: The living mechanical tissue providing tensile strength is **collenchyma**.

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